Category: Science

New discoveries, the scientific method, and all matters relating to the scientific study of the physical world

Renewable energy has drawbacks and environmental consequences

Renewable energy sources — wind, wave, solar, and the like — are generally the preferred energy sources of environmentalists. At the same time, there is no way to produce energy without some sort of environmental impact, and the more people you need energy for the greater the impact will be.

Some examples of environmental impacts from renewable energy:

Nonetheless, unintended side effects of renewable energy sometimes lead environmentalists to oppose it. In my view, they are missing how every energy source will have drawbacks and the question is how they relate to the drawbacks from alternatives, chiefly fossil fuels. Environmentalists can be too easily inclined to become perpetual and reflexive critics, always emphasizing the problems with any course of action and effectively acting as a blockage to any action.

Related:

Renewable energy options:

Environmentalist / NIMBY opposition to renewable projects:

Energy storage:

Transmission and grid interlinkage:

Demand shaping:

Politics of renewables:

Open thread: long COVID

Researchers at Canada’s Western University have used an MRI technique to identify the physiological nature of long COVID:

What we saw on the MRI was that the transition of the oxygen into the red blood cells was depressed in these symptomatic patients who had had COVID-19, compared to healthy volunteers.

The topic is important both at the individual and societal level. For individuals, the potential severity of getting COVID is much worse given that a debilitating long-term condition can arise from it. For society, the presence and extent of long COVID mean that the total costs of the pandemic can still rise by a great deal.

20 million saved by COVID vaccines

It is being reported today that a study at Imperial College London “modelled the spread of the disease in 185 countries and territories between December 2020 and December 2021, [and] found that without Covid vaccines 31.4 million people would have died, and that 19.8 million of these deaths were avoided.”

That is a staggering, historical achievement. At the same time, it reminds me of how bad people are at basing their beliefs on evidence. If we could effectively update our beliefs based on empirical information, people around the world would be celebrating this achievement and hosting parades for vaccine scientists. As things are, I have to wonder if with the political lessons taken from this pandemic we would even make such an effort in the future. Quite possibly through political polarization and the linkage of beliefs about medical facts with personal identity and ideology the world at large has become more fragile rather than more resilient through this experience.

Language use by non-human animals

I came across an interesting video debunking the idea that Koko the gorilla actually used sign language:

I don’t have the expertise to fully evaluate this on my own, but it accords with the theory which I have heard that it is more plausible that Koko was trained to respond to prompts from trainers than that she expressed her own thoughts and used language in any kind of sophisticated way.

Nevertheless, it remains a fascinating question whether inter-species communication will ever be possible with non-human beings who do seem to use sophisticated communication, such as whales, dolphins, and great apes. The question of whether they are capable is different from the question of whether we know how to help them do it. Maybe one day we will find techniques that allow them to express what they say to each other in a form that people can understand.

P.S. A great recent episode of the Ologies podcast discusses acoustic ecology.

Meltdown

I watched the four-part Netflix series on the Three Mile Island disaster and found it to be well crafted and emotionally poignant, though only OK as an educational resource on the partial meltdown.

My technical complaint is that they explain almost nothing about why the accident happened and exactly what took place while it was going on. There is a lot of interesting material on how complex systems have interactions which cannot be foreseen, as well as user interface issues in the control room, which would have helped viewers better understand.

In terms of storytelling, my objection is with how the filmmakers basically set up two kinds of interview subjects: forthright and emotional local residents who suffered, and a few wicked representatives of the industry. They quote dismissive claims about culpability and the accident’s severity from the insiders, while uncritically quoting residents on how an unchecked disaster would have destroyed Pensyllvania or the East Coast. To me this all felt like too much handholding about who to believe, coupled with insufficient reference to credible outside accounts.

I wouldn’t especially recommend the series to either people who know a lot about nuclear energy or those who know fairly little. The former are likely to be annoyed at how anecdote-driven the whole thing is, while the latter may be given a false sense of confidence about the correctness of the view expressed. Unlike the remarkable 2019 series on the Chernobyl accident, this is one that can be safely missed.

For better explanations on TMI, I would suggest Nickolas Means’s talk (which also contains some fascinating discussion about what human error means in the context of major industrial accidents and how to investigate them after the fact) or this Inviting Disaster episode from The History Channel.

Guterres on additional fossil fuel production and stranded assets

United Nations secretary general’s remarks on the ongoing release of the IPCC’s sixth assessment report are remarkable for their directness and candour:

“Climate activists are sometimes depicted as dangerous radicals,” said UN Secretary-General António Guterres during the Intergovernmental Panel on Climate Change (IPCC) news conference on Monday. “But the truly dangerous radicals are the countries that are increasing the production of fossil fuels.”

“Investing in new fossil fuel infrastructure is moral and economic madness,” UN Secretary General Antonio Guterres said at the report’s release Monday. “Such investments will soon be stranded assets, a blot on the landscape, and a blight on investment portfolios.”

Canada’s government, despite taking more action on the issue than its predecessors, remains firmly on the side of the production-increasing radicals. In part that is from how emission statistics treat the GHGs from fuels we export as someone else’s responsibility, along with the GHGs embodied in what we import. Avoiding climatic catastrophe requires an end to such numerical evasions and a firm commitment to fossil fuel abolition, with production falling by a significant percentage every year until the world no longer runs on coal, oil, and gas.

You can blame the government for their inadequacy, but at some level that becomes like blaming corporations for emissions rather than the consumers of their products. By continuing to select governments that misrepresent what the consequences of their climate change plans will be while dodging the question of ending production, Canadians are ensuring that they will be lied to. When both the Liberals and Conservatives promise that climatic stability and a growing fossil fuel sector can be compatible, they perpetuate the cycle where we sacrifice the welfare of all future generations and non-human nature for the sake of our short-term comfort and the temporary perpetuation of unsustainable ways of life.

Related:

Dissertation extract: structural barriers to climate change action

Today I saw a Twitter post with some text that governments cut from the Summary for Policymakers from the 6th Assessment Report (AR6) of the Intergovernmental Panel on Climate Change (IPCC):

B6.4. Factors limiting ambitious transformation include structural barriers, an incremental rather than systemic approach, lack of coordination, inertia, lock-in to infrastructure and assets, and lock-in as a consequence of vested interests, regulatory inertia, and lack of technological capabilities and human resources. (high confidence) {1.5, 2.8, 5.5, 6.7, 13.8}

This accords with the section on structural barriers to climate action in my in-progress dissertation.

In response, I have released a draft section from my dissertation on the structural barriers that make controlling climate change so challenging. The barriers are essential for understanding why growing scientific alarm has not translated into adequate policy responses. It also raises questions for environmentalists working to control the problem, since part of the issue is their own opposition to fossil fuel alternatives.

COVID-19 in spring 2022

As Toronto, Canada, and the rest of the world are dismantling their public health protection measures (masks are now mostly voluntary in Ontario) it seems like people’s frustration has gotten ahead of the reality that there will be further waves and variants, in part because of unequitable and insufficient vaccine distriubution globally and also partly because of the voluntarily unvaccinated who keep the virus circulating.

Based on conversations with friends and media from there the situation in China is drastically different. Tower blocks get routinely locked down by people in masks and full-body protective suits. Expatriots are afraid that they will test positive and be forced into an isolation facility.

Even if people would accept them, I wouldn’t say the Chinese tactics are necessary or attractive to emulate. Based on the reporting I have seen, their motives are more political than public spirited: declining to use more effective foreign vaccines out of nationalism, and insisting on “COVID zero” as an attempt to demonstrate the superirity of Chinese authoritarianism over chaotic democratic politics.

It’s obvious but worth repeating that the virus is unaffected by our emotions of exhaustion, frustration, and wanting the epidemic to be over. Measures including vaccine mandates and masking have always been justifiable mechanisms to slow the spread of disease and protect those with compromised immune systems and who cannot be vaccinated for legitimate medical reasons.

As so often, I wish people had a bit more fellow-feeling and less entitlement around what they should be able to do and to refuse. Politicians and members of the public desperate for ‘normality’ are delaying it by their intransience.

Between all the global forces at work today — from climate change and nuclear proliferation to loss of public trust in all institutions — I can’t help worrying that we’ll never see pre-COVID “normal” again. We may all be bound up in a developing crisis of profound global instability, where systems disrupted from the old normal trend into a new equilibrium instead of back to what we’ve grown to consider normal. Five or ten years from now, we might marvel about how normal and stable the pandemic times were.

Related:

Language and memory

The current consensus among memory researchers is that we need other capacities to be in place, skills that are not directly to do with the storage of information, before we can hope to carry our memories forward into later childhood and adulthood. One such factor is language. As soon as you can use words to describe your experience, you begin to have an entirely new way of encoding, organizing and retrieving information about the past. In one recent study conducted at the University of Leeds, the psychologists Catriona Morrison and Martin Conway asked adults to generate childhood memories in response to cue words naming everyday objects, locations, activities and emotions. By looking at existing data on the average age in infancy when these words are acquired, they were able to show that the earliest memories always lagged behind (by several months) the age at which the corresponding word was learned. “You have to have a word in your vocabulary, ” Morrison observed, “before you’re able to set down memories for that concept.” As has been noted many times, it is unlikely to be a coincidence that the end of childhood amnesia corresponds to the period in which small children become thoroughly verbal beings.

Fernyhough, Charles. Pieces of Light. HarperCollins, 2012. p. 64–5